Preserve error message during finally block in try..finally.

src/full-codegen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 510 matching lines @@
   void SetReturnPosition(FunctionLiteral* fun);
   void SetStatementPosition(Statement* stmt);
   void SetExpressionPosition(Expression* expr, int pos);
   void SetStatementPosition(int pos);
   void SetSourcePosition(int pos);
 
   // Non-local control flow support.
   void EnterFinallyBlock();
   void ExitFinallyBlock();
 
+  void SavePendingMessage();
+  void RestorePendingMessage();
+
   // Loop nesting counter.
   int loop_depth() { return loop_depth_; }
   void increment_loop_depth() { loop_depth_++; }
   void decrement_loop_depth() {
     ASSERT(loop_depth_ > 0);
     loop_depth_--;
   }
 
   MacroAssembler* masm() { return masm_; }
 
@@ skipping 269 matching lines @@
   }
 
  private:
   Zone* zone_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FULL_CODEGEN_H_